/Engine/Plugins/Developer/Concert/ConcertApp/MultiUserClient/Source/MultiUserClientLibrary/Public/MultiUserClientStatics.h
Get the last Multi-User connection error that happened, if any
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Multi-User Client", Meta=(DevelopmentOnly, DisplayName="Get Last Multi-User Connection Error")) static [FMultiUserConnectionError](API\Plugins\MultiUserClientLibrary\FMultiUserConnectionError) GetLastMultiUserConnectionError()